What is Hydrostop EU AH-25?
- A wet-on-wet, cold applied liquid waterproofing product
- Fully reinforced with a polyester fabric
- Free of solvents and isocyanates
- Very low in VOCs, fume free, virtually odourless
- Custom colours to order
- Alternative to coloured single ply
- It’s exclusive to SIG Design and Technology
How is Hydrostop EU AH-25 supplied?
- No waste – a single liquid product in a re-sealable tub
- Exclusive to SIG Design and Technology
Where should I use AH-25?
- Refurbishment to existing roofing e.g. over built-up felt systems, mastic asphalt, single ply, profiled metal or fibre cement
- For repairs where existing roofing material has failed
- For complex roofs, including new build e.g. complex detailing, upstands, edge details, penetrations and terminations. Where there’s roof-mounted plant. On balconies where single ply’s difficult to detail
- On inverted roofs including roof gardens, it’s roof resistant and FLL approved (root resistant)
- For combined pitched and flat roof applications of S1-S4 (<5% to >30%)
- Where single ply, felt roofing or hot melt is not suited
What is Hydrostop EU AH-25’s customer appeal?
- No hazardous chemicals – can be used on sensitive projects e.g. schools, hospitals and food production etc.
- No need to disrupt building occupancy
- No heat or flames during installation
- BBA certified & fire tested to DD ENV 1187:2002 ( Fire Rating Is BroofT4)
- 25 year warranty from SIG plc (extendable)
- AH-25 can perform for lifespan of building
- Can only be applied by an AH-25 approved contractor
What is Hydrostop AH-25’s Installer Appeal?
- Virtually odourless & fume free
- No additional respiratory PPE at installation
- Ideal for complex detailing/hard to access areas
- Convenient and ready to use
- For combined pitched and flat roof applications of S1-S4 (<5% to >30%)
and surface temperatures down to 0°C
- Cold applied, fast curing, can apply wet on wet
- No waste – a single liquid product
About Hydrostop AH-25 Installer Training
- Can only be installed by AH-25 trained operatives
- One day course comprising theory and practical
- Operatives tested on theory and practical skills
- Opportunity to join DATAC accredited installer scheme
- Only DATACs are offered SIG warranties & technical support
Typical Hydrostop AH-25 Applications
- Schools
- Offices
- Healthcare
- Military installations
- Sports facilities
- Flats and condominium roof terraces
- Domestic properties
How can I find out more on liquid waterproofing?
Download the new AH-25 brochure at www.singleply.co.uk/flat-roofs/hydrostop-eu-ah-25/
Read more about the benefits of liquid roofing and other flat roofing materials at www.singleply.co.uk/blog/
To support SIG customers whatever the project, SIG Design & Technology has put together an 8-step guide to identify the challenges and ensure that a roof’s design meets a building’s requirements. Called “#Perfect Roof”, the eight steps follow the process from product selection and design expertise through to full guarantees and planned maintenance. This know-how is just part of the service that is provided absolutely free to customers and includes green roofing.
